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| MIL-T-17491H(SA)
(b) Salt solution shall be 5 percent.
(c) Assembled truck shall be on its side, supported by 2-inch (50 mm) by
4-inch (100 mm) wood blocks. If truck is tested as unassembled
components, larger components shall be in position they would occupy if in
assembled truck lying on its side, supported by 2 x 4 (50 X 100 mm) Wood
blocks or suspended by corrosion-resistant cord; light components shall be
suspended by light corrosion-resistant cord, by hooks, or a slotted rack.
(d) Salt fog exposure period shall be 72 hours.
(e) The drying period shall be 168 hours at room temperature while
loosely covered with transparent plastic to retard drying and permit
visual observation
No operation after 24 hours.
(f) Visual inspection.
No operation after 72 hours.
Visual inspection
No washing or operation prior to completion of exposure and drying.
Nonconformance to 3.6.10 shall constitute
4.5.2.10.1 Failure criteria.
failure of this test.
4.5.2.11 Drop. The truck shall be lifted by its lifting points and shall be
dropped three times from a height of 3 feet (914 mm) to a level concrete
surface. Examine the truck. Then operate the unloaded truck by rasing and
lowering the forks and move the truck not less than 6 feet (1830 mm) and
operate the controls. Evidence of failure of any component, or operational
failure shall constitute failure of this test. Prior to first drop, inspect
for compliance with 3.1, maximum weight, and with 3.5.8, including hook size.
4.5.2.12 Brake. The truck; with forks at maximum elevation, shall be
subjected to a simlated rainfall of not less than 4 inches (102 mm) per hour.
The simulated rainfall shall impinge on the truck at an angle of 45 degrees
plus or minus 5 degrees with a force equivalent to a 30 mph (48 km/hr) wind.
The simulated rainfall shall dispense uniformly over the surface of the truck.
The top and left side of the truck shall be exposed to the rainfall for a
period of 30 minutes, followed by exposing the top and right side of the truck
to the rainfall for a period of 30 minutes. Immediately after exposure to the
simulated rainfall the brakes shall be tested as specified herein. The truck,
carrying 6000 pounds (2720 kg) on a pallet, shall be positioned on a 6-degree
slope With forks downslope. The test shall be conducted on a steel ramp coated
with a covering compound conforming to MIL-D-23003, type II, to provide a
nonslip surface. In addition, the surface shall be thoroughly wetted. On this
slope the brakes shall be set and released a minimum of five times. The truck
carrying 6000 pounds (2720 kg) on a pallet, with forks upslope and raised to
maximum height, and with brakes applied shall be positioned on the wet ramp
while level. The ramp shall be raised to a 15-degree slope or until the truck
with steer wheels locked begins to slide, whichever occurs first. The entire
test shall be repeated with forks downslope. Non-compliance with 3.6.8 shall
be cause for rejection of the truck.
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